TRX stands for TRANSMIT RECEIVER.
TRX has different combination depending on the user requirement.
1 trx has 8 TS out of which one is allocated for BCCH.Rest is used for voice trxmns and for data purpose.
600 WATT
(B)usiness (T)elephone (S)ystems i.e. Mitel, Shoretel, NEC, Inter-Tel (now Mitel), Avaya, Lucent, Cisco, Alcatel.. etc etc. BTS - Base Transceiver Station
48 is volt scale and negative voltage is used for safety of media, to prevent attanuation and noise.
Because 2 terminal comes out from the battery and through red wire we ground the +ive terminal so that possibility of noise interference will get zero....noise occur only in the +ive terminal.....thats why we use -ive voltage.
this would need some more detail , to be specific , and dependant on whether temperature, pressure , level or flow types. .. generally you should consider the impact if the system fails / would it result in a catastrophic situation arising, resulting a dangerous condition .? are there any fail safe emergency arrangements needed to continue cooling via pumps, or safety valves to control a pressure safely. is the new system about to be commissioned the right type for the application ? .. is installation - method the correct one.? are the sample and return pipelines set up correctly ? are there any intrinsic - safety requirements? should a valve stem or piece move during its operation ; will it clear any local objects or strike them resulting in a failure ? . is the electrical system designed suitably for the power consumption ? are there any IP - protection sealing requirements needed ? . if the application involves a flow measuring system ; the isolation -- valves should be commissioned by equalising the pressures across the instrument manifold. then opening slowly theLP low pressure isolator, and then fully, and finally opening the HP isolator to commission the instrument .
B.t.s
The TRX card in a Nokia BTS (Base Transceiver Station) is responsible for handling the air interface communication with mobile devices. It connects to the antennas and manages the transmission and reception of signals between mobile phones and the network. The TRX card plays a crucial role in enabling mobile communication within a cell coverage area.
the basic difference between nokia ultra&flexibts is that ultra can support only12 trx but flexi bts can support 24 trx. i
8 calls
only two trx supported when we use one m2ha.
Hello! A BOIA card (or BCF card) is the Base Station Control Function in a BTS. The BCF is like the BTS's brain, controling, for example, TRx's hopping.
The BB2F card in Nokia BTS is a Baseband Processing Unit that handles the digital signal processing tasks for the base station. It controls the radio resources, manages call setups, and processes the data before it is transmitted or received by the radio units. It plays a crucial role in managing the communication between the core network and the radio access network.
The BOIA card in the BTS is for maintaining the total functionality of the BTS. It consists of a local management port(LMP) through which a sysytem can be connected with the BTS and necesssray information can be loaded into it through a special software used to specify the required settings relating the RRI and TRX, synchronization(Rx clock), traffic channel and TRx signalling along with the OMU and EDAP signalling and of course the alarm configuration.
main component of nokia bts is 1)trx which contains 8 slots for call receive and transmit to another mobile station through radio interface 2)second one is psu (power supply unit) which produces the power to bts to get the operation 3)third one is bb(base band) card which support two trx in operation 4)rest of parts is boa,coupler,combiner,duplexer etc
unction of bb2f in nokia bts to multiyplecsing and conet to boia with trx bb2f is used for digital signal processing and also frequency hopping
Ultra BTS can support max. of 12 TRx (trancievers), while Flexi can support max. of 24 TRx. Ultrea has drawback that it has all Pin connections on back side, if any of the Pin of a particular slot is damaged then that slot is useless, while in flexi all connections are on front side so it is easy to install every equipment. As an operator wants to cover maximum area he will use flexi. you can say ultra a bts of old times. so, it is the difference my dear. however, one TRx card supports 8 time slots i.e. max of 8 users, but not practically. It will support max. of 7 callers. Capacity in terms of users can be increased using Half rate, i.e. A TRx will support approximately 14-15 users at half rate transmission, half rate is used during bysy hours, i.e. on one time slot 2 user will send their data/speech, with a half rate of 5.6 kbps, but at half rate voice quality is not very good. Simply one time slot will be assigned to two users in Half rate. So both of them(Ultra & Flexi) support equal no. of users if having equal no. of TRx.
3g BTS is greater than 2g bts. and it is with new technologies.